الوصول الحر: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S0104-42302016000900831Test
الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8da4745110bac01afa0936e36236a0cfTesthttps://doi.org/10.1590/1806-9282.20200695Test
الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::248afd7af3b11b47970f8e068dc8af8fTesthttp://www.scielo.br/scielo.php?script=sci_arttext&pid=S0104-42302019001201434&tlng=enTest
الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5a8a1a0489ff96d1a9649710dc4096d5Testhttps://doi.org/10.1590/1806-9282.65.9.1144Test